CVE-2021-38320 MEDIUM

CVE-2021-38320: simpleSAMLphp Authentication <= 0.7.0 Reflected Cross-Site Scripting

Vendor Simplesamlphp Authentication
Product simpleSAMLphp Authentication
Weakness CWE-79 · XSS
Published September 9, 2021
Last update May 5, 2025

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.

Key dates

02Disclosure timeline

September 9, 2021 CVE published
May 5, 2025 Record updated

Related vulnerabilities

04Related CVE